I got the boots in an 11 1/2, I am a 10 1/2 shoe. Fits perfectly. First set I got had an issue with the pump up liner, it just didn't work. I spoke to a customer rep and informed them that I was leaving for BC in 3 days. They next day aired me a replacement and gave me a return label too! Best service ever, I only buy my gear from this site! Please note that you should go 1 size up from your regular shoe size. These boots are awesome and way more comfortable then my old thirty-two tm2's. This site has by far the best customer service I have ever experienced in my 25 years of life.